On 08/11/2016 10:22 AM, Ilia Mirkin wrote:
On Thu, Aug 11, 2016 at 1:11 PM, Chad Versace <c...@kiwitree.net> wrote:
If check_textarget() determined that textarget was incorrect, it emitted
GL_INVALID_OPERATION.  This is the correct behavior when textarget is
a valid GLenum but an invalid parameter to the current variant of
glFramebufferTexture*().

However, when textarget is not a GLenum at all, then the GL spec
requires that GL_INVALID_ENUM be emitted.

Fixes test dEQP-GLES3.functional.negative_api.buffer.framebuffer_texture2d.

Cc: Haixia Shi <h...@chromium.org>
Change-Id: I86c492f228720ec8cf9939e741cfc99a5d9fa1bc
---
 src/mesa/main/fbobject.c | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 2c01526..3360940 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -3029,20 +3029,30 @@ check_textarget(struct gl_context *ctx, int dims, 
GLenum target,
       err = true;
    }

-   if (err) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "%s(invalid textarget %s)",
-                  caller, _mesa_enum_to_string(textarget));
-      return false;
+   if (!err) {
+      /* Make sure textarget is consistent with the texture's type */
+      if (target == GL_TEXTURE_CUBE_MAP) {
+         err = !_mesa_is_cube_face(textarget);
+      } else {
+         err = (target != textarget);
+      }
    }

-   /* Make sure textarget is consistent with the texture's type */
-   err = (target == GL_TEXTURE_CUBE_MAP) ?
-          !_mesa_is_cube_face(textarget): (target != textarget);
-
    if (err) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "%s(mismatched texture target)", caller);
+      const char *enum_str;
+
+      if (_mesa_enum_to_string2(textarget, &enum_str)) {

so ... if I feed it, say, GL_CLIP_PLANE0 then it's INVALID_OPERATION
but if I feed it 0xffff then it's INVALID_ENUM?

Probably should just list out the valid enums here. I wouldn't be
surprised if such a list already existed elsewhere in the file.

I didn't find such a list. I'll resubmit the patch with those enums handled
by a switch at the top of the function.

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